Our Sun, a G star with a surface temperature of 5800 K, is most similar to an OG star, being 4 times cooler than the hottest O star and approximately 1.7 times hotter than the coolest M star.
Our Sun, classified as a type G star, has a surface temperature of 5800 K, making it similar to an OG star. An O-type star is the hottest, with temperatures of around 25,000 K, making it approximately 4 times hotter than our Sun. On the other hand, an M-type star, the coolest type, has temperatures around 3500 K, making it about 1.7 times cooler than our Sun.
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